[test][IDE] Update code completion expectation

Author: lorentey

test/IDE/complete_swift_key_path_optional_root.swift

@@ -49,7 +49,7 @@ let _ : KeyPath<Person?, String> = \Person?. #^TYPE_DOT_OPTIONAL_SPACE^#
 // PERSONTYPE-DOT-OPT-SPACE-NEXT: Decl[InstanceVar]/CurrNominal/Erase[1]:   ?.bestFriend[#Person?#]; name=bestFriend
 // PERSONTYPE-DOT-OPT-SPACE-NEXT: Decl[InstanceVar]/CurrNominal/Erase[1]:   ?.itself[#Person#]; name=itself
 // PERSONTYPE-DOT-OPT-SPACE-NEXT: Decl[Subscript]/CurrNominal/Erase[1]:     ?[{#(index): Int#}][#Int#]; name=[:]
-// PERSONTYPE-DOT-OPT-SPACE-NEXT: Decl[InstanceVar]/CurrNominal/IsSystem:   unsafelyUnwrapped[#Person#]; name=unsafelyUnwrapped
 // PERSONTYPE-DOT-OPT-SPACE-NEXT: Decl[InstanceVar]/CurrNominal:            optMember[#String#]; name=optMember
+// PERSONTYPE-DOT-OPT-SPACE-NEXT: Decl[InstanceVar]/CurrNominal/IsSystem:   unsafelyUnwrapped[#Person#]; name=unsafelyUnwrapped
 // PERSONTYPE-DOT-OPT-SPACE-NEXT: Decl[InstanceVar]/CurrNominal/IsSystem:   debugDescription[#String#]; name=debugDescription
 // PERSONTYPE-DOT-OPT-SPACE-NEXT: Decl[InstanceVar]/CurrNominal/IsSystem:   customMirror[#Mirror#]; name=customMirror